Been playing this game for a while now and mostly enjoying it, that said I have some thoughts.
First off I would love to see the team focus entirely on bug fixing and crash prevention before adding "more" content to the game.
I won't go on to long about this point, its just slightly annoying to see things like new chapters of the campaign coming out when Coop can't be played for 20 minutes without a crash to desktop.
That said don't take this as hostility or whining, simply stating what I personally would prefer to see.
alright now to the juicy stuff, this will probably be longer then a single post so I'll be doing multiple messages.